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1. 发明授权

US08085109B2 Electrical funnel: a novel broadband signal combining method 有权
标题翻译：电气漏斗：一种新颖的宽带信号组合方法
公开(公告)号：US08085109B2
公开(公告)日：2011-12-27
申请号：US11525682
申请日：2006-09-22
申请人： Ehsan Afshari , Seyed Ali Hajimiri
发明人： Ehsan Afshari , Seyed Ali Hajimiri
IPC分类号： H01P5/04 , H03H7/32
CPC分类号： H01P5/02 , H01P5/12
摘要： An electrical signal transformation device configured for emulation of physical, for example, optical, phenomena and/or a mathematical or logical process. The device employs a first plurality, second plurality and third plurality of electrical components each having a first terminal and a second terminal. The first plurality and second plurality of electrical components are arranged along a first direction and a second direction respectively, to form a planar two dimensional lattice. The first plurality of electrical components are configured to provide at least one of a constant signal propagation velocity and/or amplitude while the second plurality of electrical components are configured to provide at least one of a varying signal propagation velocity and/or amplitude. The lattice includes at least two input signal nodes and at least one output signal node and is configured to transform and communicate a plurality of input signals from the input node to the output node.
摘要翻译：一种电信号转换装置，其被配置用于仿真物理，例如光学，现象和/或数学或逻辑过程。该装置采用每个具有第一端子和第二端子的第一多个，第二多个和第三多个电气部件。第一多个和第二多个电气部件分别沿着第一方向和第二方向布置，以形成平面二维晶格。第一多个电气部件被配置为提供恒定的信号传播速度和/或幅度中的至少一个，而第二多个电气部件被配置为提供变化的信号传播速度和/或振幅中的至少一个。晶格包括至少两个输入信号节点和至少一个输出信号节点，并且被配置为将多个输入信号从输入节点变换和传送到输出节点。

2. 发明申请

US20090096554A1 2D TRANSMISSION LINE-BASED APPARATUS AND METHOD 失效
标题翻译： 2D传输线路设备和方法
公开(公告)号：US20090096554A1
公开(公告)日：2009-04-16
申请号：US12252713
申请日：2008-10-16
申请人： Ehsan Afshari , Harish Bhat , Seyed Ali Hajimiri
发明人： Ehsan Afshari , Harish Bhat , Seyed Ali Hajimiri
IPC分类号： H01P3/00
CPC分类号： H01P5/12
摘要： A power combiner comprising an LC lattice structure is shown, together with a method for generating a planar wave front. The LC structure can comprise constant or voltage dependent capacitors. Either the delay or the characteristic impedance of the two-dimensional transmission line formed by the LC lattice structure are kept constant. A planar wave propagating along one direction of the transmission line gradually experiences higher impedances at the edges, creating a lower resistance path for the current in the middle. This funnels more power to the center as the wave propagates.
摘要翻译：示出了包括LC晶格结构的功率组合器以及用于产生平面波前的方法。 LC结构可以包括恒定或依赖于电压的电容器。由LC晶格结构形成的二维传输线的延迟或特性阻抗保持恒定。沿着传输线的一个方向传播的平面波逐渐在边缘处经受较高的阻抗，为中间的电流产生较低的电阻路径。随着波浪的传播，这个中心的力量更多。

3. 发明授权

US07671702B2 2D transmission line-based apparatus and method 失效
标题翻译： 2D传输线路设备和方法
公开(公告)号：US07671702B2
公开(公告)日：2010-03-02
申请号：US12252713
申请日：2008-10-16
申请人： Ehsan Afshari , Harish Bhat , Seyed Ali Hajimiri
发明人： Ehsan Afshari , Harish Bhat , Seyed Ali Hajimiri
IPC分类号： H03H5/12 , H03H7/38
CPC分类号： H01P5/12
摘要： A power combiner comprising an LC lattice structure is shown, together with a method for generating a planar wave front. The LC structure can comprise constant or voltage dependent capacitors. Either the delay or the characteristic impedance of the two-dimensional transmission line formed by the LC lattice structure are kept constant. A planar wave propagating along one direction of the transmission line gradually experiences higher impedances at the edges, creating a lower resistance path for the current in the middle. This funnels more power to the center as the wave propagates.
摘要翻译：示出了包括LC晶格结构的功率组合器以及用于产生平面波前的方法。 LC结构可以包括恒定或依赖于电压的电容器。由LC晶格结构形成的二维传输线的延迟或特性阻抗保持恒定。沿着传输线的一个方向传播的平面波逐渐在边缘处经受较高的阻抗，为中间的电流产生较低的电阻路径。随着波浪的传播，这个中心的力量更多。

4. 发明申请

US20130082785A1 Tunable signal source 有权
标题翻译：可调信号源
公开(公告)号：US20130082785A1
公开(公告)日：2013-04-04
申请号：US13573773
申请日：2012-10-04
申请人： Ehsan Afshari , Yahya M. Tousi
发明人： Ehsan Afshari , Yahya M. Tousi
IPC分类号： H03B28/00
CPC分类号： H03B28/00 , H03B5/1852 , H03B2200/007 , H03B2200/0074 , H03B2200/0076 , H03B2200/0084
摘要： The present disclosure provides a tunable signal source having a plurality of oscillator cores having a coupling input, a coupling output, and a power output that is common to each of the plurality of oscillator cores. Also included is a plurality of tunable phase shifters wherein corresponding ones of the plurality of tunable phase shifters are communicatively coupled between the coupling input and the coupling output of corresponding ones of the plurality of oscillator cores, thereby forming a loop of alternating ones of the plurality of oscillator cores and alternating ones of the plurality of tunable phase shifters.
摘要翻译：本公开提供了一种可调信号源，其具有多个具有耦合输入，耦合输出和多个振荡器核中的每一个共用的功率输出的振荡器芯。还包括多个可调移相器，其中多个可调移相器中的对应的移相器通信地耦合在耦合输入和多个振荡器核中相应的振荡器的耦合输出之间，从而形成多个可调移相器的振荡器核心和多个可调谐移相器中的交替的一个。

5. 发明申请

US20090295613A1 PERFORMING ANALOG-TO-DIGITAL CONVERSION BY COMPUTING DELAY TIME BETWEEN TRAVELING WAVES IN TRANSMISSION LINES 审中-公开
标题翻译：通过计算传输线上的行驶时间之间的延迟时间来执行模拟数字转换
公开(公告)号：US20090295613A1
公开(公告)日：2009-12-03
申请号：US12437669
申请日：2009-05-08
申请人： Arjang Hassibi , Ehsan Afshari , Chaoming Zhang , Jacob Abraham
发明人： Arjang Hassibi , Ehsan Afshari , Chaoming Zhang , Jacob Abraham
IPC分类号： H03M1/12
CPC分类号： H03M1/502 , H03M1/0682
摘要： A method and device for converting an analog input electrical signal to a digital signal. A plurality of integrated active and/or passive transmission lines may be implemented with signal-dependant propagation velocities. The delay differences of pulses traveling through these transmission lines are compared, and the collective results are used to evaluate and subsequently quantize the input signal.
摘要翻译：一种用于将模拟输入电信号转换为数字信号的方法和装置。多个集成的有源和/或无源传输线可以用信号相关的传播速度来实现。比较穿过这些传输线的脉冲的延迟差异，并且使用集合结果来评估并随后量化输入信号。

6. 发明授权

US08604893B2 Electrical prism: a high quality factor filter for millimeter-wave and terahertz frequencies 有权
标题翻译：电子棱镜：用于毫米波和太赫兹频率的高品质因子滤波器
公开(公告)号：US08604893B2
公开(公告)日：2013-12-10
申请号：US12744869
申请日：2009-12-22
申请人： Ehsan Afshari , Omeed Momeni
发明人： Ehsan Afshari , Omeed Momeni
IPC分类号： H03H7/46 , H03H5/00
CPC分类号： G02B1/007 , H01Q15/0013
摘要： Filters and methods which may be used with millimeter-wave and terahertz frequency range are disclosed. The filter is formed as an electrical prism which may include a first lattice forming an interface with a second lattice. Each lattice may include a plurality of passive elements, such as inductors, capacitors, and the like. The first lattice may include an input disposed at an input boundary thereof, while the second lattice may include an output disposed at an output boundary thereof. Furthermore, the first and second lattices may be configured to receive a signal at the input of the first lattice, propagate the signal to the interface, and direct the signal to the outputs of the second lattice.
摘要翻译：公开了可以与毫米波和太赫兹频率范围一起使用的滤波器和方法。滤光器形成为电棱镜，其可以包括形成与第二格子的界面的第一格子。每个晶格可以包括多个无源元件，例如电感器，电容器等。第一格可以包括设置在其输入边界处的输入，而第二格可以包括设置在输出边界处的输出。此外，第一和第二晶格可以被配置为在第一晶格的输入处接收信号，将信号传播到接口，并将信号引导到第二晶格的输出。

7. 发明申请

US20110194324A1 Generation of High-Frequency, High-Power Electrical Signals From Low-Frequency, Low-Power Lattice Network Structures as Sources 有权
标题翻译：从低频，低功率晶格网络结构产生高频，大功率电信号作为源
公开(公告)号：US20110194324A1
公开(公告)日：2011-08-11
申请号：US12994203
申请日：2009-05-19
申请人： Ehsan Afshari , Harish Bhat
发明人： Ehsan Afshari , Harish Bhat
IPC分类号： H02M5/02
CPC分类号： H01P1/20 , H03F1/565 , H03F3/602 , H03F2200/222 , H03H7/48
摘要： An apparatus and method for outputting high-frequency, high-power signals from low-frequency, low-power input is disclosed. The apparatus and method may provide a two-dimensional nonlinear lattice having a plurality of inductors and voltage-dependent capacitors intersecting at a plurality of nodes. Two or more adjacent boundaries of the nonlinear lattice may be provided with input signals which constructively interfere to output a signal of substantially higher amplitude and higher frequency than those of the input signals.
摘要翻译：公开了一种用于从低频，低功率输入输出高频大功率信号的装置和方法。该装置和方法可以提供具有在多个节点处相交的多个电感器和与电压相关的电容器的二维非线性晶格。非线性晶格的两个或多个相邻边界可以被提供有输入信号，该输入信号被建设性地干扰以输出比输入信号的那些更高幅度和更高频率的信号。

8. 发明授权

US07456704B2 2D transmission line-based apparatus and method 有权
标题翻译： 2D传输线路设备和方法
公开(公告)号：US07456704B2
公开(公告)日：2008-11-25
申请号：US11413613
申请日：2006-04-28
申请人： Ehsan Afshari , Harish Bhat , Seyed Ali Hajimi{grave over (r)}i
发明人： Ehsan Afshari , Harish Bhat , Seyed Ali Hajimi{grave over (r)}i
IPC分类号： H01P5/12 , H03H7/38
CPC分类号： H01P5/12
摘要： A power combiner comprising an LC lattice structure is shown, together with a method for generating a planar wave front. The LC structure can comprise constant or voltage dependent capacitors. Either the delay or the characteristic impedance of the two-dimensional transmission line formed by the LC lattice structure are kept constant. A planar wave propagating along one direction of the transmission line gradually experiences higher impedances at the edges, creating a lower resistance path for the current in the middle. This funnels more power to the center as the wave propagates.
摘要翻译：示出了包括LC晶格结构的功率组合器以及用于产生平面波前的方法。 LC结构可以包括恒定或依赖于电压的电容器。由LC晶格结构形成的二维传输线的延迟或特性阻抗保持恒定。沿着传输线的一个方向传播的平面波逐渐在边缘处经受较高的阻抗，为中间的电流产生较低的电阻路径。随着波浪的传播，这个中心的力量更多。

9. 发明申请

US20130207725A1 RESONATOR CIRCUIT AND AMPLIFIER CIRCUIT 有权
标题翻译：谐振器电路和放大器电路
公开(公告)号：US20130207725A1
公开(公告)日：2013-08-15
申请号：US13702444
申请日：2011-06-07
申请人： Ehsan Afshari , Wooram Lee
发明人： Ehsan Afshari , Wooram Lee
IPC分类号： H03F7/04 , H03G3/00
CPC分类号： H03F7/04 , H03B19/00 , H03G3/00
摘要： A passive frequency divider in a CMOS process. More specifically, an electrical distributed parametric oscillator to realize a passive CMOS frequency divider with low phase noise. Instead of using active devices, which are the main sources of noise and power consumption, an oscillation at half of the input frequency is sustained by the parametric process based on nonlinear interaction with the input signal. For example, one embodiment is a 20 GHz frequency divider utilizing a CMOS varactor and made in a 0.13 μm CMOS process. In this embodiment: (i) without any dc power consumption, 600 mV differential output amplitude can be achieved for an input amplitude of 600 mV; and (ii) the input frequency ranged from 18.5 GHz to 23.5 GHz with varactor tuning. In this embodiment, the output phase noise is almost 6 dB lower than that of the input signal for all offset frequencies up to 1 MHz. Also, a resonant parametric amplifier with a low noise figure (NF) by exploiting the noise squeezing effect. Noise squeezing occurs through the phase-sensitive amplification process and suppresses one of two quadrature components in input noise. When the input signal is only in the direction of the non-suppressed quadrature component, squeezing can lower that NF by almost 3 dB. The resonant structure of the proposed amplifier achieves the squeezing effect using a low number of LC elements.
摘要翻译： CMOS工艺中的无源分频器。更具体地说，一种电分布参数振荡器来实现具有低相位噪声的无源CMOS分频器。不是使用主要的噪声和功耗来源的有源器件，而是通过基于与输入信号的非线性相互作用的参数化过程来维持输入频率的一半的振荡。例如，一个实施例是使用CMOS变容二极管并在0.13μmCMOS工艺中制造的20GHz分频器。在本实施例中：（i）没有任何直流功率消耗，600mV的输入振幅可达到600mV差分输出幅度; 和（ii）变容二极管调谐时，输入频率范围为18.5 GHz至23.5 GHz。在本实施例中，对于高达1MHz的所有偏移频率，输出相位噪声比输入信号的输出相位噪声差6dB左右。此外，通过利用噪声挤压效应，具有低噪声系数（NF）的谐振参量放大器。噪声挤压发生在相敏放大过程中，并抑制输入噪声中的两个正交分量之一。当输入信号仅在非抑制正交分量的方向上时，挤压可将NF降低近3dB。所提出的放大器的谐振结构使用低数量的LC元件实现了挤压效应。

10. 发明授权

US08466832B2 Doppler-inspired, high-frequency signal generation and up-conversion 有权
标题翻译：多普勒启发，高频信号发生和上转换
公开(公告)号：US08466832B2
公开(公告)日：2013-06-18
申请号：US12892210
申请日：2010-09-28
申请人： Ehsan Afshari , Omeed Momeni
发明人： Ehsan Afshari , Omeed Momeni
IPC分类号： G06G7/12
CPC分类号： H03B19/00
摘要： Doppler-inspired methods for signal generation and frequency up-conversion are provided that are compatible with CMOS technology. In accordance with an embodiment, a circuit is provided that includes two input signals that can propagate on artificial transmission lines in opposite directions, resembling the relative movement of source and observer in Doppler frequency shift; and an output signal combiner. By controlling the characteristics of the transmission lines and the input signal frequencies, the harmonic generation of active devices is utilized and combined to provide the desired high-frequency component at the output.
摘要翻译：提供与CMOS技术兼容的信号产生和上变频的多普勒启发方法。根据实施例，提供了一种电路，其包括可在相反方向上在人造传输线上传播的两个输入信号，类似于多普勒频移中的源和观测器的相对移动; 和输出信号组合器。通过控制传输线的特性和输入信号频率，利用有源器件的谐波产生并组合以在输出端提供期望的高频分量。

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